Initial analysis of interceptor documentation issue

Co-authored-by: arthurfiorette <47537704+arthurfiorette@users.noreply.github.com>

test-interceptor-order.mjs

@@ -0,0 +1,101 @@
+// Test to verify the actual order of axios interceptors
+import Axios from 'axios';
+
+const testAxios = () => {
+  const axios = Axios.create();
+  const order = [];
+
+  // Mock adapter that just returns a response
+  axios.defaults.adapter = async (config) => {
+    order.push('ADAPTER');
+    return {
+      data: { success: true },
+      status: 200,
+      statusText: 'OK',
+      headers: {},
+      config
+    };
+  };
+
+  // Add interceptors BEFORE setupCache
+  axios.interceptors.request.use((config) => {
+    order.push('req-1-before');
+    return config;
+  });
+
+  axios.interceptors.request.use((config) => {
+    order.push('req-2-before');
+    return config;
+  });
+
+  axios.interceptors.response.use((response) => {
+    order.push('res-1-before');
+    return response;
+  });
+
+  axios.interceptors.response.use((response) => {
+    order.push('res-2-before');
+    return response;
+  });
+
+  // Simulate setupCache by adding interceptors
+  axios.interceptors.request.use((config) => {
+    order.push('req-CACHE');
+    return config;
+  });
+
+  axios.interceptors.response.use((response) => {
+    order.push('res-CACHE');
+    return response;
+  });
+
+  // Add interceptors AFTER setupCache
+  axios.interceptors.request.use((config) => {
+    order.push('req-3-after');
+    return config;
+  });
+
+  axios.interceptors.request.use((config) => {
+    order.push('req-4-after');
+    return config;
+  });
+
+  axios.interceptors.response.use((response) => {
+    order.push('res-3-after');
+    return response;
+  });
+
+  axios.interceptors.response.use((response) => {
+    order.push('res-4-after');
+    return response;
+  });
+
+  return { axios, order };
+};
+
+// Run the test
+(async () => {
+  const { axios, order } = testAxios();
+  
+  await axios.get('http://test.com');
+  
+  console.log('\nActual execution order:');
+  console.log(order.join(' -> '));
+  
+  console.log('\n\nRequest interceptors order:');
+  const reqOrder = order.filter(x => x.startsWith('req-'));
+  console.log(reqOrder.join(' -> '));
+  
+  console.log('\nResponse interceptors order:');
+  const resOrder = order.filter(x => x.startsWith('res-'));
+  console.log(resOrder.join(' -> '));
+  
+  console.log('\n\nConclusion:');
+  console.log('Request interceptors are executed in REVERSE order (Last In First Out)');
+  console.log('  - req-4-after runs FIRST (added last)');
+  console.log('  - req-1-before runs LAST (added first)');
+  console.log('');
+  console.log('Response interceptors are executed in NORMAL order (First In First Out)');
+  console.log('  - res-1-before runs FIRST (added first)');
+  console.log('  - res-4-after runs LAST (added last)');
+})();